body{
    margin:0;
    background:#f5f7fb;
    font-family:Segoe UI,Arial,sans-serif;
    color:#222;
}

.container{
    max-width:900px;
    margin:40px auto;
    background:white;
    padding:40px;
    border-radius:12px;
    box-shadow:0 5px 18px rgba(0,0,0,.1);
}

h1{
    color:#4F46E5;
}

h2{
    margin-top:30px;
    color:#333;
}

p,li{
    line-height:1.7;
}